>>566550Colors that contrast and pop more, the light blue on white doesnt pop like the examples bright red on white. All your colors kinda blend together and the bushes and trees look odly textured compared to the crisp cutoffs of all the shapes in example

I don't think it's THAT simple, look well at the shadows and surfaces. It almost looks like there's some atmospheric fog/GI going on. The colors on some of the white walls are bluer than the colors on others. The shadow colors aren't uniform either. The insides of the rooms are also much darker than anywhere else, and appear to get darker as you go deeper into them. That and the darkness of some corners suggests some kind of occlusion shading going on. It's not incredible or anything but I'd also say this shading is far from "simple" unless your idea of "simple" is plugging a material into a renderer which does a lot of complicated things for you, but in any case things more complicated than dot product of normal and light vector are going on. I don't intend to sound demeaning there.

I'd agree it's probably not doing any reflections and generally does have simple specularity/highlight shading though.